[Help] Google play services crashing constantly on cm12 nightly topic

hey, just flashed latest cm12 and gapps ( banks) . But getting google play service has stopped error pop ups since first boot and these pop ups are non stop . Thus making phone almost unusable. Had to disable google play services.
Any fixes ?
I am on unofficial twrp 2.8.6.0 .:confused:

xda-developers